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arxiv: hep-ph/0101062 · v1 · submitted 2001-01-08 · ✦ hep-ph

Further comment on pion electroproduction and the axial form factor

classification ✦ hep-ph
keywords electroproductionpionaxialchargedfactorformthresholdcalculations
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We show that a recent claim (H.Haberzettl, Phys. Rev. Lett. 85 (2000) 3576) that one cannot extract the nucleon weak axial form factor G_A (t) from charged pion threshold electroproduction is incorrect. Thus previous calculations remain valid and threshold charged pion electroproduction experiments can indeed be used to determine G_A (t), and they should certainly be pursued.

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